Setting Scaling Upper And Lower Limits (Analog Input); Analog Input - Omron E5CN User Manual

Setting Scaling Upper and Lower Limits (analog input)

4-3

Setting Scaling Upper and Lower Limits (analog input)

4-3-1

Analog input

Scaling
upper
limit
Scaling
lower limit
Decimal
point
Operation Procedure
1,2,3...
Initial setting level
Input type
Scaling upper
limit
Scaling lower
limit
Decimal point
46
• When an analog input (voltage input) is selected, scaling matched to the
control is possible.
• Scaling is set in the "scaling upper limit", "scaling lower limit" and "decimal
point" parameters (initial setting level). These parameters cannot be used
when temperature input type is selected.
• The "scaling upper limit" parameter sets the physical quantity to be
expressed by the upper limit value of input, and the "scaling lower limit"
parameter sets the physical quantity to be expressed by the lower-limit
value of input. The "decimal point" parameter specifies the number of dig-
its past the decimal point.
• The following figure shows a scaling example of 0 to 5 mV input. After
scaling, the humidity can be directly read.
Readout
(humidity)
Upper-limit value (95.0%)
Lower-limit value (10.0%)
In this example, let's set the scaling upper- and lower-limits so that inputs 0 to
50 mV become 10.0% to 95.0%.
1. Press the key for at least three seconds to move from the "operation
level" to the "initial setting level".
2. Select "scaling upper limit" by pressing
3. Press the or
4. Select "scaling lower limit" by pressing
5. Press the or
6. Select the decimal point position by pressing
7. Press the or
8. To return to the "operation level" press the
0mV
0
.
key to set the parameter to "950".
.
key to set the parameter to "100".
key to set the parameter to "1".
Section 4-3
50mV
Input
(0 to 50 mV)
100%FS
.
key for at least one second.